Alkylation and Reduction of N-Alkyl-4-nitroindazoles with Anhydrous SnCl2 in Ethanol: Synthesis of Novel 7-Ethoxy-N-alkylindazole Derivatives
摘要:
New series of indazoles substituted at the N-1 and N-2 positions and their 7-ethoxy derivatives have been synthesis starting from alkylation of 4-nitroindazole and reduction of alkyl-nitro-derivatives with anhydrous SnCl2 in ethanol. The structures of the products obtained were characterized using H-1 NMR, C-13 NMR, MS spectrometry and elemental analysis; the NMR spectroscopic data were used for structural assignment of the N-1 and N-2 isomers.
A Suitable Functionalization of Nitroindazoles with Triazolyl and Pyrazolyl Moieties via Cycloaddition Reactions
作者:Mohammed Eddahmi、Nuno M. M. Moura、Latifa Bouissane、Ouafa Amiri、M. Amparo F. Faustino、José A. S. Cavaleiro、Ricardo F. Mendes、Filipe A. A. Paz、Maria G. P. M. S. Neves、El Mostapha Rakib
DOI:10.3390/molecules25010126
日期:——
The alkylation of a series of nitroindazole derivatives with 1,2-dibromoethane afforded the corresponding N-(2-bromoethyl)- and N-vinyl-nitro-1H-indazoles. The Cu(I)-catalysed azide- alkyne 1,3-dipolar cycloaddition was selected to substitute the nitroindazole core with 1,4-disubstituted triazole units after converting one of the N-(2-bromoethyl)nitroindazoles into the corresponding azide. The reactivity
Towards Alzheimer’s disease-related targets: One-pot Cu(I)- mediated synthesis of new nitroindazolyltriazoles
作者:Mohammed Eddahmi、Gabriella La Spada、Abderrafia Hafid、Mostafa Khouili、Marco Catto、Latifa Bouissane
DOI:10.1016/j.bioorg.2022.106261
日期:2023.1
In this work, we have investigated the one pot strategy for the Cu(I)-mediated synthesis of new triazoles bearing nitroindazole moieties using different copper catalysts. The biological activity of newly synthesized nitroindazolyltriazoles towards Alzheimer’s disease-related targets, namely cholinesterases, monoamine oxidases, and amyloid aggregation, were investigated. Predictions of target affinity